David Cameron on Sunday: "We need to understand that cultural change is worth any number of government initiatives. Who has done more to improve school food, Jamie Oliver, or the Department of Education?"

Boris Johnson today: "If I was in charge I would get rid of Jamie Oliver and tell people to eat what they like… Why shouldn’t they push pies through the railings? …I would ban sweets from school – but this pressure to bring in healthy food is too much." (Quoted on BBC Online where Mr Johnson has since denied the reports).